Re: [Qemu-devel] live migration + licensing issue.

[Anshul Makkar]

Hi,

Yeah, I am aware of this option. But the point where I am concerned is
that if Windows VM is running in QEMU 1.0 with pc-model 1.0 and then I
upgrade the QEMU to 2.0 and I specify machine as pc-1.2, then Windows
will see this as change in hardware and complain about the license.

Sorry, if my understanding is wrong here or i am missing something.

Anshul Makkar

On Tue, Jul 8, 2014 at 6:25 PM, Andreas Färber <address@hidden> wrote:
> Hi,
>
> Am 08.07.2014 17:24, schrieb Anshul Makkar:
>> In our data center we are using qemu 1.0/ 1.2 and we need to do a live
>> migration to qemu 2.0.
>>
>> One of the main hindrance that we are facing is that QEMU 1.0 uses old
>> PC model so if a user using Windows on the VM running on QEMU 1.0 does
>> a live migrate to QEMU 2.0 , he will see a licensing issue as after
>> migration Windows will see a new hardware beneath it.
>>
>> Any suggestion as to how to overcome this problem.
>
> Please check the documentation. There's the -machine option with
> parameters such as pc-1.0 and pc-1.2 for that exact purpose. libvirt
> should supply the corresponding option automatically.
>
> More difficult is if you're trying to migrate from qemu-kvm to qemu -
> code changes to your copy of 2.0 will be necessary then.
>
> Regards,
> Andreas
>
> --
> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
> GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg